Exoplanet
Kepler-1399 b
4,519.55 light-years
- Discovery
- Transit · 2016
- Radius
- 1.25 (+0.22 / −0.11) Earth radii
- Mass
- 2.1 Earth masses
- Orbital period
- 1.6387 (+8.952 × 10⁻⁶ / −8.952 × 10⁻⁶) days
- Semi-major axis
- 0.0276 AU
- Equilibrium temperature
- 1,610 K
- Mass provenance
- M-R relationship
Measurements may come from different studies and need not form one self-consistent model. “Msini” is a minimum mass; a mass inferred from radius is an estimate. Equilibrium temperature is a model estimate, not a measured surface temperature or evidence of habitability.
NASA archive record and references ↗
Snapshot retrieved: 2026-10-11T04:15:07.688253+00:00